What was Charles Édouard Guillaume's main area of research?
Astronomy
Precision measurements in physics
Genetics
Botany
Answer
Precision measurements in physics were Charles Édouard Guillaume's main area of research. He developed new alloys, such as invar and elinvar, which have very low coefficients of thermal expansion and are used in precision instruments. Guillaume also invented the Guillaume thermometer, which is a very accurate thermometer that is used in scientific research. His work on precision measurements earned him the Nobel Prize in Physics in 1920.
Unraveling the Genius: The Life and Legacy of Charles Édouard Guillaume
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